Store.js

const electron = require('electron');
const path = require('path');
const os = require('os');
const fs = require('fs');

class Store {
  constructor(options) {
    const userDataPath = (electron.app || electron.remote.app).getPath(
      'userData'
    );
    this.path = path.join(userDataPath, options.configName + '.json');
    this.data = parseDatafile(this.path, options.defaults);
  }

  get(key) {
    return this.data[key];
  }

  set(key, value) {
    this.data[key] = value;
    fs.writeFileSync(this.path, JSON.stringify(this.data));
  }
}

function parseDatafile(filePath, defaults) {
  try {
    return JSON.parse(fs.readFileSync(filePath));
  } catch (error) {
    return defaults;
  }
}

module.exports = Store;